121731675552 has 60 divisors (see below), whose sum is σ = 358009483986. Its totient is φ = 40577224320.

The previous prime is 121731675547. The next prime is 121731675553. The reversal of 121731675552 is 255576137121.

121731675552 is a `hidden beast` number, since 1 + 2 + 1 + 7 + 31 + 67 + 5 + 552 = 666.

121731675552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 94320237456 + 27411438096 = 307116^2 + 165564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121731675498 and 121731675507.

It is not an unprimeable number, because it can be changed into a prime (121731675553) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23479599 + ... + 23484782.

Almost surely, 2^121731675552 is an apocalyptic number.

121731675552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121731675552 is an abundant number, since it is smaller than the sum of its proper divisors (236277808434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121731675552 is an equidigital number, since it uses as much as digits as its factorization.

121731675552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46964403 (or 46964386 counting only the distinct ones).

The product of its digits is 441000, while the sum is 45.

The spelling of 121731675552 in words is "one hundred twenty-one billion, seven hundred thirty-one million, six hundred seventy-five thousand, five hundred fifty-two".